The thing is Bigfoot has a legit medical condition which requires the use of TRT. He's said he's followed strict doctor guidance so it'll be interesting to see how it develops.

Found this on Sherdog which had been borrowed from his Facebook page...

“Clarification: months before my fight, I looked for the UFC doctor Marcio Tannure in Brazil so I could start the hormonal replacement ‘TRT,’ which was authorized and recognized by a professional,” Silva wrote. “I started the treatment, and two weeks before my fight I did all the exams required by the UFC. My testosterone level continued to be low, so I was recommended by the doctor to increase the dosage. Unfortunately, my level increased too much and caused me to suspend. I only did what was recommended by someone trained who understands about the subject; therefore it was not my mistake. I'm cool, because I know that the mistake was not made by me. I never tried doing anything wrong for my fight.”

Interesting to see if he takes his doctor through the courts over this...